USB charger



FIG. 1 is a front, top and right side elevational view of a USB chargerfigure showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a perspective reference view when a plug is pulled from thebase.

CLAIM The ornamental design for a USB charger, as shown and described.